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Insertable rod probe for measuring moisture content in particular in soil using for example time domain transmissiometry (TDT)
专利权人:
发明人:
申请号:
EP12183428.7
公开号:
EP2534941A2
申请日:
2008.12.05
申请国别(地区):
EP
年份:
2012
代理人:
摘要:
Sensor 20 includes a main body with a peg-shaped portion 24 and a cylindrical head portion 28. Peg-shaped portion 24 is shaped and sized to allow sensor 20 to be inserted into the soil by applying force to cylindrical head portion 28. Sensor 20 comprises a transmission electrode having a length that is greater than the physical length of the sensor. The TDT circuitry is located on a circuit board 32 which is located within peg-shaped portion 24. Electrical connections 36 including signal leads from the TDT circuitry and the electrical power supply to sensor 20 extend from the outside of sensor 20 through cylindrical head portion 28 and connect to circuit board 32. The sensor can be employed as part of a sensing system with one or more sensors.
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